I have the same car and i wanted to lower the same as you want. I just installed 2 weeks ago kyb agx and tein s. tech springs. If you plan on road racing then go with a stiffer spring. I heard the h&r race springs are good. They say they lower 2.2 the tein state that they lower 1.7 f 1.9 r. The ride is great with my setup.